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Statements of Convertible Preferred Stock and Stockholders' Equity - USD ($)
$ in Thousands
Total
Series A Convertible Preferred Stock
Series B Convertible Preferred Stock
Common Stock
Additional Paid-in Capital
Accumulated Other Comprehensive Income
Accumulated Deficit
Beginning Balance (in shares) at Dec. 31, 2023       3,168,134      
Beginning Balance at Dec. 31, 2023 $ (38,374)     $ 3 $ 8,199   $ (46,576)
Temporary Equity, Beginning Balance (in shares) at Dec. 31, 2023   75,000,000 60,828,720        
Temporary Equity, Beginning Balance at Dec. 31, 2023   $ 74,694 $ 74,521        
Issuance of Series B Convertible Preferred Stock, issuance costs (in shares)     60,828,732        
Issuance of Series B Convertible Preferred Stock, issuance costs     $ 74,942        
Issuance of common stock in connection with initial public offering, net of issuance costs (in shares)       18,400,000      
Issuance of common stock in connection with initial public offering, net of issuance costs 302,767     $ 18 302,749    
Temporary equity, Conversion of convertible preferred stock to common stock upon initial public offering (in shares)   (75,000,000) (121,657,452)        
Temporary equity, Conversion of convertible preferred stock to common stock upon initial public offering   $ (74,694) $ (149,463)        
Conversion of convertible preferred stock to common stock upon initial public offering (in shares)       22,839,774      
Conversion of convertible preferred stock to common stock upon initial public offering 224,157     $ 23 224,134    
Issuance of common stock upon exercise of stock options (in shares)       28,896      
Issuance of common stock upon exercise of stock options 66       66    
Vesting of restricted common stock 21       21    
Repurchases of unvested restricted common stock (in shares)       (14,299)      
Stock-based compensation expense 3,152       3,152    
Net unrealized gain on marketable securities 56         $ 56  
Net Income (Loss) (71,798)           (71,798)
Ending Balance (in shares) at Dec. 31, 2024       44,422,505      
Ending Balance at Dec. 31, 2024 $ 420,047     $ 44 538,321 56 (118,374)
Temporary Equity, Ending Balance (in shares) at Dec. 31, 2024 0            
Issuance of common stock upon exercise of stock options (in shares)       268,188      
Issuance of common stock upon exercise of stock options $ 982     $ 1 981    
Issuance of common stock under employee stock purchase plan (in shares)       118,191      
Issuance of common stock under employee stock purchase plan 717       717    
Vesting of restricted common stock 23       23    
Repurchases of unvested restricted common stock (in shares)       (2,612)      
Repurchases of unvested restricted common stock (1)       (1)    
Stock-based compensation expense 8,476       8,476    
Net unrealized gain on marketable securities 561         56  
Net Income (Loss) (48,879)           (48,879)
Ending Balance (in shares) at Dec. 31, 2025       44,806,272      
Ending Balance at Dec. 31, 2025 $ 381,926     $ 45 $ 548,517 $ 617 $ (167,253)
Temporary Equity, Ending Balance (in shares) at Dec. 31, 2025 0